1 | ;;; fdefinition.lisp |
---|
2 | ;;; |
---|
3 | ;;; Copyright (C) 2005-2006 Peter Graves |
---|
4 | ;;; $Id: fdefinition.lisp 14451 2013-03-27 14:35:18Z mevenson $ |
---|
5 | ;;; |
---|
6 | ;;; This program is free software; you can redistribute it and/or |
---|
7 | ;;; modify it under the terms of the GNU General Public License |
---|
8 | ;;; as published by the Free Software Foundation; either version 2 |
---|
9 | ;;; of the License, or (at your option) any later version. |
---|
10 | ;;; |
---|
11 | ;;; This program is distributed in the hope that it will be useful, |
---|
12 | ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
13 | ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
14 | ;;; GNU General Public License for more details. |
---|
15 | ;;; |
---|
16 | ;;; You should have received a copy of the GNU General Public License |
---|
17 | ;;; along with this program; if not, write to the Free Software |
---|
18 | ;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
---|
19 | ;;; |
---|
20 | ;;; As a special exception, the copyright holders of this library give you |
---|
21 | ;;; permission to link this library with independent modules to produce an |
---|
22 | ;;; executable, regardless of the license terms of these independent |
---|
23 | ;;; modules, and to copy and distribute the resulting executable under |
---|
24 | ;;; terms of your choice, provided that you also meet, for each linked |
---|
25 | ;;; independent module, the terms and conditions of the license of that |
---|
26 | ;;; module. An independent module is a module which is not derived from |
---|
27 | ;;; or based on this library. If you modify this library, you may extend |
---|
28 | ;;; this exception to your version of the library, but you are not |
---|
29 | ;;; obligated to do so. If you do not wish to do so, delete this |
---|
30 | ;;; exception statement from your version. |
---|
31 | |
---|
32 | (in-package #:system) |
---|
33 | |
---|
34 | (export '(record-source-information untraced-function)) |
---|
35 | |
---|
36 | (defun check-redefinition (name) |
---|
37 | (when (and *warn-on-redefinition* (fboundp name) (not (autoloadp name))) |
---|
38 | (when (and (symbolp name) |
---|
39 | (source-pathname name)) |
---|
40 | ;; SOURCE-PATHNAME is badly named as it is either a PATHNAMAE |
---|
41 | ;; or the symbol :TOP-LEVEL |
---|
42 | (let ((old-source |
---|
43 | (if (keywordp (source-pathname name)) |
---|
44 | (source-pathname name) |
---|
45 | (probe-file (source-pathname name)))) |
---|
46 | (current-source |
---|
47 | (if (not *source*) |
---|
48 | :top-level |
---|
49 | (probe-file *source*)))) |
---|
50 | (cond ((equal old-source |
---|
51 | current-source)) ; OK |
---|
52 | (t |
---|
53 | (if (eq current-source :top-level) |
---|
54 | (style-warn "redefining ~S at top level" name) |
---|
55 | (let ((*package* +cl-package+)) |
---|
56 | (if (eq old-source :top-level) |
---|
57 | (style-warn "redefining ~S in ~S (previously defined at top level)" |
---|
58 | name current-source) |
---|
59 | (style-warn "redefining ~S in ~S (previously defined in ~S)" |
---|
60 | name current-source old-source)))))))))) |
---|
61 | |
---|
62 | (defun record-source-information (name &optional source-pathname source-position) |
---|
63 | (unless source-pathname |
---|
64 | (setf source-pathname (or *source* :top-level))) |
---|
65 | (unless source-position |
---|
66 | (setf source-position *source-position*)) |
---|
67 | (let ((source (if source-position |
---|
68 | (cons source-pathname source-position) |
---|
69 | source-pathname))) |
---|
70 | (cond ((symbolp name) |
---|
71 | (put name '%source source))))) |
---|
72 | |
---|
73 | ;; Redefined in trace.lisp. |
---|
74 | (defun trace-redefined-update (&rest args) |
---|
75 | (declare (ignore args)) |
---|
76 | ) |
---|
77 | |
---|
78 | ;; Redefined in trace.lisp. |
---|
79 | (defun untraced-function (name) |
---|
80 | (declare (ignore name)) |
---|
81 | nil) |
---|
82 | |
---|
83 | (defun fset (name function &optional source-position arglist documentation) |
---|
84 | (cond ((symbolp name) |
---|
85 | (check-redefinition name) |
---|
86 | (record-source-information name nil source-position) |
---|
87 | (when arglist |
---|
88 | (%set-arglist function arglist)) |
---|
89 | (%set-documentation function 'function documentation) |
---|
90 | (%set-symbol-function name function)) |
---|
91 | ((setf-function-name-p name) |
---|
92 | (check-redefinition name) |
---|
93 | (record-source-information name nil source-position) |
---|
94 | ;; FIXME arglist documentation |
---|
95 | (setf (get (%cadr name) 'setf-function) function)) |
---|
96 | (t |
---|
97 | (require-type name '(or symbol (cons (eql setf) (cons symbol null)))))) |
---|
98 | (when (functionp function) ; FIXME Is this test needed? |
---|
99 | (%set-lambda-name function name)) |
---|
100 | (trace-redefined-update name function) |
---|
101 | function) |
---|
102 | |
---|
103 | (defun fdefinition (name) |
---|
104 | (cond ((symbolp name) |
---|
105 | (symbol-function name)) |
---|
106 | ((setf-function-name-p name) |
---|
107 | (or (get (%cadr name) 'setf-function) |
---|
108 | (error 'undefined-function :name name))) |
---|
109 | (t |
---|
110 | (require-type name '(or symbol (cons (eql setf) (cons symbol null))))))) |
---|
111 | |
---|
112 | (defun %set-fdefinition (name function) |
---|
113 | (fset name function)) |
---|
114 | |
---|
115 | (defsetf fdefinition %set-fdefinition) |
---|